What is Provably Fair? How Crypto Casinos Prove Fairness

Understanding Provably Fair Gaming

Provably fair is a technology unique to crypto casinos that allows players to independently verify that game outcomes are genuinely random and haven't been manipulated by the casino.

How It Works

The provably fair system uses three key components:

1. Server seed: A random string generated by the casino before each bet

2. Client seed: A random string provided by the player (or auto-generated)

3. Nonce: A counter that increments with each bet

These three values are combined using a cryptographic hash function (typically SHA-256) to determine the game outcome.

The Verification Process

Before the bet:

• The casino creates a server seed and shows you its SHA-256 hash (not the seed itself)
• You can set your own client seed or use the default

During the bet:

• The server seed + client seed + nonce are combined to generate the result
• This determines whether you win or lose

After the bet:

• The casino reveals the actual server seed
• You can hash it yourself to verify it matches the hash shown before
• You can recalculate the game outcome to confirm it wasn't rigged

Why It Matters

Traditional online casinos ask you to trust that their random number generators (RNGs) are fair, typically verified by third-party auditors. Provably fair eliminates this trust requirement - you can mathematically verify every single bet yourself.

Which Games Support It?

Provably fair works best with simple games:

• Dice (Hi-Lo)
• Coin flip
• Mines
• Plinko
• Crash
• Limbo

More complex games like slots and table games typically still rely on traditional RNGs from game providers.

Casinos with Provably Fair Games

The best crypto casinos for provably fair gaming include Stake.com (Stake Originals), BC.Game (BC Originals), and Cloudbet.